Jeff,
I had to show the pistons to a local Ford drag racer before he would believe me. The bore is 4.19 with a stroke of 3.984. That comes out to a 439.5 CI by the math. I did say 427 but I meant a 428SJC. However if you do the math on the 428SJC it is still a 427, they jusy downsized the bore a little and lenghtened the stroke and kept the 427 size. Sorry about the misrepsentation. This is a 1969 Torino Cobra special build car that so far as the Fairlane Club of america has been able to determine is the only one ever built exactly like it. There were 97 that are in the registry that are very close but mine has some factory and dealer options that none of the others had. It has all NASCAR running gear and I should have paid more attention to my post when I stated the engine size. Don't blame you for questioning my statement as I questioned the dealer when I came in to take delivery about the .060 over. But that downsize of the bore made it possible however the car does run around 200-220 degrees and has ever since it was new. I really wish they had only gone .030 over but everything is original and I don't want to change anything now.
Ron61
Ron Widener